Imports in module “periph.io/x/periph” periph.io/x/periph/conn/gpio periph.io/x/periph/conn/gpio/gpioreg periph.io/x/periph/conn/physic periph.io/x/periph/host/allwinner periph.io/x/periph/host/chip periph.io/x/periph/host/pine64 Standard library imports errors flag fmt os testing time